/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.iotdb.spark.tsfile.qp.common;

/**
 * This class is a superclass of all operator.
 */
public abstract class Operator {

    int tokenIntType;
    String tokenSymbol;

    Operator(int tokenIntType) {
        this.tokenIntType = tokenIntType;
        this.tokenSymbol = SQLConstant.tokenSymbol.get(tokenIntType);
    }

    public int getTokenIntType() {
        return tokenIntType;
    }

    public String getTokenSymbol() {
        return tokenSymbol;
    }

    @Override
    public String toString() {
        return tokenSymbol;
    }
}
